Can you just delete all our customer data synced in quicbooks from shopify store?

You can use a deleter tool

https://get.transactionpro.com/qbo

Hey there, @zef besos.

How are you doing today? I hope all is well so far. 

For now, the only option to delete the data would be deleting each transaction, etc. individually. However, you can browse through our App Store and find a third-party app that will delete all the synced data at once. 

Here's the link to the App Store: 

• QuickBooks App Store

If you choose to disconnect Shopify, here's how: 

1. Log in to your QuickBooks Online account via a browser.
2. Head to the Apps menu, and go to the My Apps tab.
3. Look for the Shopify app and click the Action button.
4. Choose Disconnect and answer the exit survey.
5. Click the Confirm Disconnect button.

Please let me know if there is anything else that I can assist you with. I'm happy to lend a hand. Take care!